Remote Prog.Problem I cannot program my Sony TV into the remote control. When you "learn" you cannot select TV on the LCD screen. I have the manual and it is no use. Any ideas?

Turn on your U-verse TV, press Menu on your U-verse remote ,
select Help, Information, and then Remote Control Setup. Next,
select your remote control from the TV onscreen list. Refer to
your specific remote for TV/device setup options. Select Top Ten
Brand Setup, Automatic Code , Learning Mode, or Manual Setup.

Remote code for Sylvania LCD TV?? - Comcast Help and Support Forums

forums.xfinity.com/t5/XfinityTV...code...Sylvania-LCD-TV/td.../884915

Feb 23, 2011 - I have the same remote for another TV and tried everything on that one too. Does not work the Sylvania either. The Sylvania has a HD converter ... comcast remote will not program to my sylvania tv
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If you whsh to get all functions operated with your TV, you must have its original remote control, and it is no doubt. No universal remote control will operate with all functions, that are supposed to be, especially to Sony Brands. You can buy the original remote control from the authorized service center for Sony, or from any authorized dealer for Sony. Then why do you go for an experiment

2. Auto Scan With Three-Digit Number
You can also program your remote control by sending out a
series of Power Off commands for different brands stored
in the library by using the following steps. This is similar
to the first method, except it is easier to move through all
of the device codes for your device and make note of each
one that turns your device OFF.
1. Manually turn on the device you plan to operate.
2. Go to the SETUP mode by pressing both the MAIN and
ENT buttons simultaneously for three seconds.
3. Press the P-PRO button next to the LCD screen.
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4. Programming the MX-500TMto Control Your Components
4. The remote will be flashing "SELECT BUTTON".
Press the device you wish to program. (For example, to
program TV, press the TV button.)
5. The remote will be flashing "FROM TABLE". Select the
device from which the scanned code will be selected.
(Important: If you have already relabeled your device
keys, your LCD screen will not look like the illustration
above. Select the appropriate LCD button for the "FROM
TABLE" using the labels as shown in the illustration on
page 11 of this manual. For example, if you have relabeled
AUX as LIGHTS, you would still push the bottom-left
button to access the AUX Code Table.
6. Point the remote control toward the component and
alternately press the UP (or DOWN ) button on the LCD
and the Power button. If the right code number is sent, the
component will turn off right after the code number is
transmitted.
(Please press the UP (or DOWN ) button within 20 seconds
of beginning programming, otherwise the remote will
revert to the SETUP menu, and then after a period of time,
it will go back to the MAIN device page.)
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7. Confirm that it is the right code by pressing the Power
button. After you have confirmed that the right code is
entered, save the code by pressing the SAVE button on the
LCD.
8. Confirm that you entered the right code number that
matches your component by pressing other functional
buttons. If any of the buttons do not operate, as they
should, please repeat from Step 1.
9. Continue to program other components by repeating
from step 1 above.
10. You can press EXIT at any time if you do not wish to
proceed.
11. Exit from Preprogrammed mode by pressing the MAIN
button and then exit from the SETUP mode by pressing the
MAIN button once again.

go and buy a universal learning remote and you will be able to program all your devices on the remote, works very nice. as far as the lg remote, dont think there is a way where u can program your cable and dvd onto the remote and I have lots of experiences with LG

I would suggest you use the learning mode and teach your remote from the remote that came with the Sony

Do you use a Home Theater receiver along with your televison?  Are other components, such as a DVD player, VCR, Blu-ray player, etc. connected?
If so, it's possible that the Mute function on your remote is muting the sound from your receiver, and not the TV itself.
If that's the case, you'll need to look at the details of the "default" buttons for your activities, and see whether the Mute function is associated with your TV or your receiver.  If it's set for the receiver, you need to change it to be associated with the TV.

I'm not sure of your model number but those remotes use the NEC codes and the variants on the NEC codes. If that code set is not the databse, you may have to "learn" it on your particular remote.

Good luck

We bought a Sylvania LC420ss8 HDTV.

Our current universal remotes would not work, I followed the advice on this site and got a Sony
RM- VL600 Sony Untergrated Remote Commander, use page 16 in the manual to teach the new remote off of the remote that came with the TV. It really works. I am happy with the tv and remote.

If you have the original remote, you have the Sony "learn" the signal from it. It's not too difficult and the manual will walk you through it.